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Hi, All,
I couldn't figure out how to come up with a Regex solution for
following task. Suppose i have to find evey word which doesn't end
with 's' in a text file. What the Regex will be? especially when we
have something like 'John's ', 'Tom's'. the regex i have tried always
pick it up and match part of it, because i used the word boundary
'\b'. the apostophe is a word boundary. How to overcome it?
see example below.
Note: in this contrived example, we just hav e single word each line.
in reality, we want to search through the long line.
Does anyone can show me how to come up a correct Regex?
thanks!
Yu
data test;
if _n_ = 1 then re = prxparse('/\b(\w*(?!=s))\b/');
retain re;
infile cards truncover;
input string $20.;
pos=prxmatch(re, string);
if pos then match = prxposn(re, 1, string);
cards;
john's
book
;
run;
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